Two-fingers swipe gesture for navigating back/forward

Use cases

When navigating in the file system one can also go to previous next folder with the two buttons in the top left corner.

Desired behavior

It would be great if one could also navigate forth and back by swiping to the left (previous view) or right (next view) using three two fingers on the touch pad or touchscreen.

Benefits of the solution

• When navigating through the folders, one does not need to move the mouse to the top left corner and back.
• It is consistent to Epiphany (which uses it as well (Nightly)).

Possible drawbacks

I don't know any.

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Edit by @jfft: replaced 3 fingers by 2, and added touchscreen mention.